Assessment of genetic diversity within eucheumatoid cultivars in east Sabah, Malaysia
| Autor: | Pui-Ling Tan, Phaik-Eem Lim, Janina Brakel, Juliet Brodie, Sze-Wan Poong, Ahemad Sade, Ji Tan, Claire M. M. Gachon |
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| Přispěvatelé: | Molécules de Communication et Adaptation des Micro-organismes (MCAM), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Scottish Association for Marine Science (SAMS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Eucheuma Cultivation [SDV]Life Sciences [q-bio] Plant Science Aquatic Science Biology 01 natural sciences 03 medical and health sciences Kappaphycus alvarezii Genetic variation Cultivar Domestication 030304 developmental biology 0303 health sciences Genetic diversity business.industry 010604 marine biology & hydrobiology fungi food and beverages Kappaphycus cox2-3 spacer biology.organism_classification cox1 Biotechnology Rhodophyta Gene pool business |
| Zdroj: | Journal of Applied Phycology Journal of Applied Phycology, Springer Verlag, 2021, ⟨10.1007/s10811-021-02608-8⟩ |
| ISSN: | 0921-8971 1573-5176 |
| Popis: | Studies have shown that cultivars of the carrageenophytes Kappaphycus and Eucheuma are clones of a limited number of strains originally domesticated from wild populations. For the development and selection of new cultivars, it is important that a comprehensive record of available variants exists. This study was conducted to provide up-to-date analysis and compilation of the current state of cultivars as the last list of cultivars was compiled nearly a decade ago. The present study analyzed the cox2–3 spacer and cox1 (1356 bp) genetic diversity of cultivars collected from 2019 to 2020 from the east coast of Sabah where the seaweed farms are concentrated. These data were compared with cultivars reported from 2010 to 2012 to assess changes, if any, to the gene pool of farmed eucheumatoid in Malaysia. Kappaphycus alvarezii, K. striatus, and K. malesianus are currently cultivated while Eucheuma denticulatum is no longer an important cultivar compared to a decade ago, probably due to its lower price. Analysis of the cox2–3 spacer revealed a new haplotype, LBT10, and, by including published GenBank data, a further four previously unnamed haplotypes were recognized from Sabah. This study confirms that there is a limited gene pool within cultivars in Malaysia and suggests the need for new or genetically diverse cultivars which can adapt to a changing environment, to ensure a more sustainable carrageenan industry. |
| Databáze: | OpenAIRE |
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